Geoege h



(No Model.)

G. 'H. HELVBY.

JOURNAL BEARING.

PainentedMar. 27; 1888.

I VENTOR Sea .11 Mar-neg N, PETERS PhulwLfllwgr-mphen Wuhingtun. n a

UNITED STATES PATENT OFFICE.

GEORGE H. HELVEY, OF HAMILTON, OHIO, ASSIGNOR TO THE HOOVEN, OWENS & RENTSGHLER COMPANY, OF SAME PLACE.

JOURNAL-BEARING.

SPECIFICATION forming part of Letters Patent No. 380,035, dated March 27, 1888.

Application filed September 27, 1887. Serial No. 250,864.

To all whom it may concern:

Be it known that I, GEORGE H. HELVEY, of Hamilton, Butler county, Ohio, have invented certain new and useful Improvements in J ournal-Bearings, of which the following is a specification.

This invention pertains to journal-bearings applicable with aspecial advantage to the main bearings of pillow-blocks of steam-engines.

My improvement will be readily understood from the following description, taken in connection with the accompanying drawings, in which Figure 1 is a side elevation of the pillowblock end of the bed -piece of a horizontal steam-engine, the pillow-block being illustrated as forming the termination of the girder-bed A, the engine-shaft in this view ap' pearing in transverse section; Fig. 2, a vertical section through the pillow-block at right angles to the plane of Fig. 1, the collar on the shaft appearing also in vertical section; Fig. 3, a side elevation of the removable shaft-collar; Fig. 4, an edge view of this collar.

In the drawings, A represents the end portion of the girder-bed of a horizontal steamengine, being that portion of the bed which adjoins the main bearing or pillow-block; B, the pedestal of the pillow-block, the same being attached or formed with the portion A of the bed-plate and provided with feet to serve in attaching it to its foundation; 0, an upwardly-open rectangular recess in the top of the pedestal to receive the bearing portions of the pillow-block; D, the usual quarterbox seated on the floor of this recess, one at each side of the shaft, and to be provided, preferably, with means by which they may be adjusted inwardly as wear takes place, such means commonly consisting of vertically-moving wedges disposed between the backs of the quarter-box and the inner face of the pedestaljaws, and arranged to be adjusted by studs and nuts projecting above the pillow-block cap; E, a rectangular recess in the pedestal below the floor of the recess 0, the recess E lying directly below the shaft; F, a bed-box fitting the recess E and extending from side to side of the pedestal, this bed box forming the bottom bearing for the shaft; G, the shaft; H, the cap main bearing in proper order.

(No model.)

of the pillow-block, secured to the pedestal, as usual, and serving as the top bearing of the pillow-block; J, a shallow groove in the periphery of the shaft-just beyond the rear side face of the pillow-block; K, a collar firmly secured to the shaft at this groove, the collar seating in the bottom of the groove, such collar being divided and joined by screws, as shown in Figs. 3 and 4, so as to permit its ready attachment to and removal from the shaft; L, a representation in dotted line of the bed-box F in process of being withdrawn from its normal position, and M a screw-eye or handle to be temporarily inserted into a suitable hole in the end of the bed'box to serve as a means for Withdrawing it from its normal position.

In steam engines of the larger class and having crank-shafts with a diameter of twelve inches and over, and of corresponding weight, great difficulty is experienced in keeping the Engines of this size are generally employed in situations where continuous operation is of the utmost importance, and long delays, incident to repairs, &c., of the pillow-block, become serious. As pillow-blocks are generally constructed, it becomes necessary in efiecting repairs or substitution of the bed-box to disconnect the connecting-rod of the engine from the crank and to elevate the crank-shaft well or entirely out of the pillow-block; and in cases where the engine-shaft is long or coupled direct tosucceeding lengths of shaft it becomes necessary to disconnect the shaft at such coupling, so as to permit the proper elevation of shaft to be made at the pillow-block end, it being necessary, under such circumstances. that the shaft should rise in the outboard-box, as well as in means of blocks and wedges under the crank. The screw-eye M, or a similar handle, is then attached to the exposed end of the bed-box, and the bed-box is drawn longitudinally and angularly outward, as indicated in Fig. 2. A new bed-box in good condition may be at once inserted, or the one removed may be relined and restored, after which the shaft is lowered, the collar restored to its place, and the cap again adjusted. All of this work may be done by one man and in an exceedingly short space of time. No discon nections of the connectingrod or of the shaft-couplings are called for, and

even the pillow-block cap need not be removed. In case a mere vertical adjustment of the bed-box is desired, instead of a relining or a substitution, a shim of proper thickness is to be laid upon the floor of the recess E be-. fore the bed-boxis restored. The sides of the recess E are to be parallel with each other and at right angles to the floor of that recess,

and the bed-box is to fit that recess as snugly as is consistent with ready removal and insertion of the bed-box in the manner described.

I claim as my invention In a pillow-block, the combination of apedestal provided with a rectangular recess below the shaft, quarter boxes secured in the pedestal, a cap for the pedestal, a bed-box set in said rectangular recess and fitted for longitudinal withdrawal therefrom, a shaft supported by the pillow-block, and a collar secured to said shaft against the end of said bedbox and serving to prevent the endwise displacement of said bed-box, and fitted for removal therefrom to permit the endwise withdrawal of the bed box, substantially as and for the purpose set forth.

' GEO. H. HELVEY. Witnesses: Y

J. G. HOOVEN, W. A. SEWARD. 

